CN109280557B - Heat exchange method for carbonization furnace - Google Patents
Heat exchange method for carbonization furnace Download PDFInfo
- Publication number
- CN109280557B CN109280557B CN201811115254.2A CN201811115254A CN109280557B CN 109280557 B CN109280557 B CN 109280557B CN 201811115254 A CN201811115254 A CN 201811115254A CN 109280557 B CN109280557 B CN 109280557B
- Authority
- CN
- China
- Prior art keywords
- carbonization furnace
- furnace
- combustion chamber
- heat exchange
- horizontal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B1/00—Retorts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B1/00—Retorts
- C10B1/02—Stationary retorts
- C10B1/06—Horizontal retorts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C5/00—Production of pyroligneous acid distillation of wood, dry distillation of organic waste
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Coke Industry (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention relates to the field of carbonization furnaces, in particular to a heat exchange method of a carbonization furnace, which comprises the following steps: the method comprises the following steps that firstly, a horizontal carbonization furnace, a vertical carbonization furnace and a regenerative furnace are arranged, a combustion chamber is arranged in the regenerative furnace, burners are respectively arranged on the regenerative furnace, and an air outlet of the regenerative furnace is connected to a waste heat exchange device; secondly, the horizontal carbonization furnace is operated firstly, the generated wood gas is supplied to the horizontal carbonization furnace for heating, and then the rest wood gas is introduced into a combustion chamber for ignition and combustion; thirdly, after the combustion chamber is heated to 750-900 ℃, the vertical carbonization furnace operates, and the generated wood gas is input into the combustion chamber; fourthly, inputting wood gas generated by the vertical carbonization furnace into a combustion chamber for combustion; and fifthly, the gas after the combustion of the regenerative furnace enters a waste heat exchange device for heat exchange. The technical problems that wood gas used as boiler fuel in the existing carbonization furnace is low in efficiency and capacity for realizing waste heat exchange are solved.
Description
Technical Field
The invention relates to the field of carbonization furnaces, in particular to a heat exchange method of a carbonization furnace.
Background
At present, there are two main types of carbonization furnaces, one is a vertical furnace, such as the one disclosed in the chinese patent application No.: cn201610527691.x discloses a gas-carbon co-production device; one is a horizontal furnace, such as the Chinese patent No.: CN201310028585.3 discloses a horizontal continuous biochar carbonization device. The vertical furnace has the main advantages of large capacity and large yield, the wood gas produced during the production of the vertical furnace contains byproducts such as water vapor, tar, pyroligneous liquor and the like, when the vertical furnace operates alone, the water vapor, the tar and the pyroligneous liquor need to be separated out in a condensation mode, and the separated wood gas still has higher humidity, so that when the vertical furnace is used for burning and heating a boiler, and then heat exchange is carried out, the heat exchange efficiency is not high, and the tail gas after burning can be discharged only after complex tail gas treatment, and in the burning process, the vertical furnace is easy to extinguish due to the influence of the byproducts. The horizontal furnace is just opposite to the vertical furnace, has the defects of small capacity and small yield, has the advantages that the temperature of the generated wood gas is higher, the byproducts exist in a gaseous state and can be combusted, the temperature of the combusted wood gas can reach more than 850 ℃, the tail gas does not need to be subjected to more complicated tail gas treatment, 40-60 percent of the wood gas can be supplied to self-heating for use during production, and the rest of combustion is supplied to a waste heat exchange device to realize waste heat recovery. How to combine the advantages of these two furnaces has been the consideration of the applicant.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides a heat exchange method of a carbonization furnace, which solves the technical problems of low efficiency and low capacity of the existing carbonization furnace that wood gas is used as boiler fuel to realize waste heat exchange.
In order to achieve the purpose, the invention adopts the following technical scheme: a heat exchange method for a carbonization furnace, comprising the following steps:
the method comprises the following steps that firstly, a horizontal carbonization furnace, a vertical carbonization furnace and a regenerative furnace are arranged, a combustion chamber is arranged in the regenerative furnace, wood gas of the horizontal carbonization furnace and wood gas of the vertical carbonization furnace are respectively connected into the combustion chamber, burners for combusting the wood gas input into the horizontal carbonization furnace and the vertical carbonization furnace are respectively arranged on the regenerative furnace, and an air outlet of the regenerative furnace is connected into a waste heat exchange device;
secondly, the horizontal carbonization furnace is operated firstly, the generated wood gas is supplied to the horizontal carbonization furnace for heating, and then the rest wood gas is introduced into a combustion chamber for ignition and combustion;
thirdly, after the combustion chamber is heated to 750-900 ℃, the vertical carbonization furnace operates, and the generated wood gas is input into the combustion chamber;
fourthly, inputting wood gas generated by the vertical carbonization furnace into a combustion chamber for combustion;
and fifthly, the gas after the combustion of the regenerative furnace enters a waste heat exchange device for heat exchange.
Furthermore, tail gas which is combusted and heated by the horizontal carbonization furnace is communicated with the middle part of the bottom of the combustion chamber.
By adopting the technical scheme, the invention has the beneficial effects that: the heat exchange method of the carbonization furnace comprises the steps that the vertical carbonization furnace and the horizontal carbonization furnace are used in parallel, a condensation purification recovery system of tar and pyroligneous acid is not arranged, the heat storage furnace is additionally arranged, the wood gas and the byproducts thereof are input into the heat storage furnace and are mixed with low oxygen to be combusted in a high-temperature environment (800-1000 ℃) to form high-temperature clean hot gas, so that the purpose of fully treating the wood gas of the vertical carbonization furnace and the horizontal carbonization furnace is realized by combining and utilizing the wood gas, even if the wood gas of the vertical carbonization furnace has more byproducts, the wood gas can be gasified in a high-temperature state, the tar can be cracked, the full combustion is realized, a waste heat exchange device is added during treatment, the waste heat can be recycled, the recycling rate is high, the capacity is large, and when the tail gas is discharged, a complex treatment flow is; furthermore, the combustion tail gas of the horizontal carbonization furnace is communicated with the middle part of the bottom of the combustion chamber, so that the tail gas of the horizontal carbonization furnace can fully enter the combustion chamber, the combustion chamber can be heated due to the higher temperature of the combustion chamber, meanwhile, the part which is not fully combusted in the tail gas can also be fully combusted, and the blockage of the high-temperature tail gas of the horizontal carbonization furnace on the low-temperature wood gas entering the vertical carbonization furnace is avoided, so that the blockage is formed.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1, the present embodiment provides a heat exchange system for a carbonization furnace, including a frame, a vertical carbonization furnace 1 disposed on the frame, a horizontal carbonization furnace 2 disposed on the frame, a regenerative furnace 3 disposed on the frame, and a waste heat exchange device 4 connected to the regenerative furnace 3, wherein a combustion chamber 31 is disposed in the regenerative furnace 3, the vertical carbonization furnace 1 and the horizontal carbonization furnace 2 are respectively communicated with the combustion chamber 31 of the regenerative furnace 3, and the regenerative furnace 3 is respectively provided with a burner 32 and a burner 33 for burning wood gas input to the horizontal carbonization furnace 2 and the vertical carbonization furnace 1. The tail gas of the horizontal carbonization furnace 2 is communicated with the middle part of the bottom of the combustion chamber 31. The wood gas of the vertical carbonization furnace 1 and the horizontal carbonization furnace 2 is respectively communicated with the middle part of the side surface of the combustion chamber 31.
The vertical carbonization furnace, the horizontal carbonization furnace, the regenerative furnace and the waste heat exchange device are conventional equipment in the field, wherein the regenerative furnace adopts a conventional furnace body which is provided with a second air inlet 35 connected with the vertical carbonization furnace, a first air inlet 34 connected with the horizontal carbonization furnace, an air outlet 36 connected with the waste heat exchange device and a tail gas inlet 37 communicated with tail gas of the horizontal carbonization furnace, the combustor 32 is arranged between the first air inlet 34 and the combustion chamber 31, the combustor 33 is arranged between the second air inlet 35 and the combustion chamber 31, and the combustor is also conventional equipment and can suck air to realize combustion supporting of wood gas. The combustion chamber is usually provided with refractory bricks for heat storage, which is also a conventional device and will not be described herein.
The heat exchange method of the carbonization furnace by using the heat exchange system of the carbonization furnace comprises the following steps:
the method comprises the following steps that firstly, a horizontal carbonization furnace, a vertical carbonization furnace and a regenerative furnace are arranged, a combustion chamber is arranged in the regenerative furnace, wood gas of the horizontal carbonization furnace and wood gas of the vertical carbonization furnace are respectively connected into the combustion chamber, burners for combusting the wood gas input into the horizontal carbonization furnace and the vertical carbonization furnace are respectively arranged on the regenerative furnace, and an air outlet of the regenerative furnace is connected into a waste heat exchange device;
secondly, the horizontal carbonization furnace is operated firstly, the generated wood gas is supplied to the horizontal carbonization furnace for heating, and then the rest wood gas is introduced into a combustion chamber for ignition and combustion;
thirdly, after the combustion chamber is heated to 750-900 ℃, the vertical carbonization furnace operates, and the generated wood gas is input into the combustion chamber;
fourthly, inputting wood gas generated by the vertical carbonization furnace into a combustion chamber for combustion;
and fifthly, the gas after the combustion of the regenerative furnace enters a waste heat exchange device for heat exchange.
The tail gas of the horizontal carbonization furnace which is burnt and heated is communicated with the middle part of the bottom of the combustion chamber. After the regenerative furnace is ignited, air can be introduced to realize combustion supporting.
The heat exchange method of the carbonization furnace comprises the steps of using the vertical carbonization furnace and the horizontal carbonization furnace in parallel, and adding the heat storage furnace, so that the aim of fully treating wood gas of the vertical carbonization furnace and the horizontal carbonization furnace is fulfilled, even if the wood gas of the vertical carbonization furnace has more byproducts, the wood gas can be gasified in a high-temperature state, tar can be cracked, and full combustion is realized; furthermore, the combustion tail gas of the horizontal carbonization furnace is communicated with the middle part of the bottom of the combustion chamber, so that the tail gas of the horizontal carbonization furnace can fully enter the combustion chamber, the combustion chamber can be heated due to the higher temperature of the combustion chamber, meanwhile, the part which is not fully combusted in the tail gas can also be fully combusted, and the blockage of the high-temperature tail gas of the horizontal carbonization furnace on the low-temperature wood gas entering the vertical carbonization furnace is avoided, so that the blockage is formed.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. A heat exchange method of a carbonization furnace is characterized by comprising the following steps:
the method comprises the following steps that firstly, a horizontal carbonization furnace, a vertical carbonization furnace and a regenerative furnace are arranged, a combustion chamber is arranged in the regenerative furnace, wood gas of the horizontal carbonization furnace and wood gas of the vertical carbonization furnace are respectively connected into the combustion chamber, burners for combusting the wood gas input into the horizontal carbonization furnace and the vertical carbonization furnace are respectively arranged on the regenerative furnace, and an air outlet of the regenerative furnace is connected into a waste heat exchange device;
secondly, the horizontal carbonization furnace is operated firstly, the generated wood gas is supplied to the horizontal carbonization furnace for heating, and then the rest wood gas is introduced into a combustion chamber for ignition and combustion;
thirdly, after the combustion chamber is heated to 750-900 ℃, the vertical carbonization furnace operates, and the generated wood gas is input into the combustion chamber;
fourthly, inputting wood gas generated by the vertical carbonization furnace into a combustion chamber for combustion;
and fifthly, the gas after the combustion of the regenerative furnace enters a waste heat exchange device for heat exchange.
2. A heat exchange method for a carbonization furnace according to claim 1, characterized in that: the tail gas of the horizontal carbonization furnace which is burnt and heated is communicated with the middle part of the bottom of the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811115254.2A CN109280557B (en) | 2018-09-25 | 2018-09-25 | Heat exchange method for carbonization furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811115254.2A CN109280557B (en) | 2018-09-25 | 2018-09-25 | Heat exchange method for carbonization furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109280557A CN109280557A (en) | 2019-01-29 |
| CN109280557B true CN109280557B (en) | 2020-12-15 |
Family
ID=65181850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811115254.2A Active CN109280557B (en) | 2018-09-25 | 2018-09-25 | Heat exchange method for carbonization furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109280557B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1397184A (en) * | 1972-02-15 | 1975-06-11 | Commw Scient Ind Res Org | Method and apparatus for transferring heat to or from material |
| CN201322523Y (en) * | 2008-12-25 | 2009-10-07 | 吴联平 | Boiler tail gas heat recovery device for drying mosquito incenses |
| CN104562300A (en) * | 2013-10-09 | 2015-04-29 | 杜淑卿 | Preparation technology of fine nanoparticle |
| CN104609418B (en) * | 2014-12-23 | 2019-05-24 | 浙江省农业科学院 | Biological material carbonization-activation integral device |
-
2018
- 2018-09-25 CN CN201811115254.2A patent/CN109280557B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109280557A (en) | 2019-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104748125B (en) | Pyrolysis volatile matter combustion system | |
| CN101363067A (en) | Combined double preheating device | |
| CN103742946A (en) | Downdraft biomass gasification combustion cooking and heating furnace | |
| WO2011032354A1 (en) | External combustion and internal heating type coal retort furnace | |
| US20160186992A1 (en) | Direct-fired heating method and facility for implementing same | |
| CN104315500B (en) | A kind of biomass gasification combustion furnace | |
| CN104531226A (en) | Biomass gasified combustion heat supply method for industrial kiln stove | |
| CN105542815A (en) | Device for producing wood charcoal and recovering wood vinegar and wood tar | |
| CN109280557B (en) | Heat exchange method for carbonization furnace | |
| CN101561137A (en) | Downdraft gasification coal-fired boiler | |
| CN102128447B (en) | Steam heating method of bed materials of fluidized bed boiler | |
| CN110160038B (en) | Semi-gasification combustion pressure-bearing boiler for biomass briquette | |
| CN104498071B (en) | The heating means of accumulation of heat intermittent-heating stove in oil shale retorting oil refining | |
| CN109578976A (en) | A kind of energy-saving and environment-friendly grate firing boiler for being applicable in solid fuel and its processing method | |
| CN203382777U (en) | Hot-blast furnace | |
| RU2013143022A (en) | METHOD FOR HEATING A BURNER FURNACE AIR HEATER | |
| CN209081799U (en) | A kind of retort heat-exchange system | |
| CN201531866U (en) | Down-draught type burning coal gasification boiler | |
| CN209853984U (en) | Combustion type glass tempering heating device | |
| CN101608134A (en) | Inclined coal-fired gasification furnace | |
| CN204022747U (en) | The novel vertical coke oven of blue charcoal is produced for low-temperature pyrolysis in low-rank coal | |
| CN211847164U (en) | Activated carbon production equipment | |
| CN105524629A (en) | Split type carbonization furnace set | |
| CN106854471A (en) | Continuous biomass temperature control retort | |
| CN205347319U (en) | Split type carbomorphism bank of ovens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |